There's always a place for nostalgia: old blokes playing Acker Bilk at summer fetes, those 'Back to '88' Raves, things like that. They're fine so long as they're taken for what they are. Then there's band like
Witchcraft who go all out simply to replicate a by-gone era for a modern young audience that seems to want contemporary music simply to replicate what they perceive as a kind of Golden era. For these people I suspect that nostalgia isn't just a comfy stroll through a certain yesteryear (that most of them would've never actually experienced) but a corrective to what they perceive as the cultural ills of their own time. It's that same mindset that I think makes bands such as Monster Magnet so appealing to certain people: a kind of unconscious desire for music to get back to a time when bands did things supposedly 'properly'.